Patents by Inventor Kazuya Usirokawa
Kazuya Usirokawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190368512Abstract: In an electrochemical hydrogen pump, an anode separator, an anode diffusion layer, an electrolyte membrane, a cathode diffusion layer and a cathode separator are laminated sequentially, in which the anode separator has a first recess portion that accommodates the anode diffusion layer, and a bottom surface of the first recess portion is a bowl-shaped curved surface having a protruding central portion; the cathode separator has a second recess portion that accommodates the cathode diffusion layer, and a bottom surface of the second recess portion is a bowl-shaped curved surface having a recessed central portion.Type: ApplicationFiled: March 14, 2019Publication date: December 5, 2019Inventors: NORIHIKO KAWABATA, KAZUYA USIROKAWA
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Patent number: 10202696Abstract: Provided is an electromechanical hydrogen pump, including: (i) an electrolyte membrane; (ii) an anode electrode layer and an anode diffusion layer that are provided at one side of the electrolyte membrane; (iii) a cathode electrode layer and a cathode diffusion layer that are provided at the other side of the electrolyte membrane; (iv) an anode seal that has openings each surrounding the anode diffusion layer; (v) a cathode seal that has openings each surrounding the cathode diffusion layer; (vi) an anode separator that is placed on an outer side of the anode diffusion layer; and (vii) a cathode separator that is placed on an outer side of the cathode diffusion layer, wherein no spaces are provided between the anode diffusion layer and the anode seal or between the cathode diffusion layer and the cathode seal.Type: GrantFiled: April 25, 2017Date of Patent: February 12, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Norihiko Kawabata, Kazuya Usirokawa, Shinji Yoshino, Hidenobu Wakita
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Publication number: 20170350021Abstract: Provided is an electromechanical hydrogen pump, including: (i) an electrolyte membrane; (ii) an anode electrode layer and an anode diffusion layer that are provided at one side of the electrolyte membrane; (iii) a cathode electrode layer and a cathode diffusion layer that are provided at the other side of the electrolyte membrane; (iv) an anode seal that has openings each surrounding the anode diffusion layer; (v) a cathode seal that has openings each surrounding the cathode diffusion layer; (vi) an anode separator that is placed on an outer side of the anode diffusion layer; and (vii) a cathode separator that is placed on an outer side of the cathode diffusion layer, wherein no spaces are provided between the anode diffusion layer and the anode seal or between the cathode diffusion layer and the cathode seal.Type: ApplicationFiled: April 25, 2017Publication date: December 7, 2017Inventors: NORIHIKO KAWABATA, KAZUYA USIROKAWA, SHINJI YOSHINO, HIDENOBU WAKITA
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Patent number: 9373595Abstract: In a provided mounting structure, an electronic component such as a semiconductor chip having a fragile film is mounted on a substrate such as a circuit board with higher connection reliability. A junction that connects an electrode terminal (4) of an electronic component (1) and an electrode terminal (5) of a substrate (2) contains an alloy (8) and a metal (9) having a lower modulus of elasticity than the alloy (8). The junction has a cross section structure in which the alloy (8) is surrounded by the metal (9) having the lower modulus of elasticity.Type: GrantFiled: August 8, 2012Date of Patent: June 21, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Daisuke Sakurai, Kazuya Usirokawa, Kiyomi Hagihara
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Patent number: 9331042Abstract: A plurality of protruding electrodes of a semiconductor chip are in contact with a plurality of electrodes formed on a semiconductor substrate, via a plurality of solder sections. In this state, the solder sections are melted so as to form a plurality of solder bonding sections joined to the protruding electrodes of the semiconductor chip and the electrodes of the semiconductor substrate. Moreover, a distance between a part of the semiconductor chip and the semiconductor substrate is larger than a distance between the other part of the semiconductor chip and the semiconductor substrate, extending at least some of the solder bonding sections. Thus, the solder bonding sections vary in height. Holes are then formed at least in a solder bonding section having a maximum height out of the solder bonding sections. After that, the solder bonding sections are solidified.Type: GrantFiled: November 16, 2012Date of Patent: May 3, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Daisuke Sakurai, Kazuya Usirokawa
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Patent number: 8921708Abstract: An electronic-component mounted body of the present invention includes an electronic component mounted on a circuit board. The electronic component includes multiple component-side electrode terminals, and the circuit board includes multiple circuit-board side electrode terminals for the component-side electrode terminals. The electronic-component mounted body further includes: multiple protruded electrodes formed respectively on the component-side electrode terminals of the electronic component to electrically connect the electronic component and the circuit board; and a dummy electrode formed on the electronic component and electrically connected to the component-side electrode terminal in a predetermined position out of the component-side electrode terminals. The protruded electrode on the component-side electrode terminal in the predetermined position is higher than the protruded electrode on the component-side electrode terminal in a different position from the predetermined position.Type: GrantFiled: September 22, 2011Date of Patent: December 30, 2014Assignee: Panasonic CorporationInventors: Daisuke Sakurai, Kazuya Usirokawa
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Publication number: 20140299986Abstract: A plurality of protruding electrodes of a semiconductor chip are in contact with a plurality of electrodes formed on a semiconductor substrate, via a plurality of solder sections. In this state, the solder sections are melted so as to form a plurality of solder bonding sections joined to the protruding electrodes of the semiconductor chip and the electrodes of the semiconductor substrate. Moreover, a distance between a part of the semiconductor chip and the semiconductor substrate is larger than a distance between the other part of the semiconductor chip and the semiconductor substrate, extending at least some of the solder bonding sections. Thus, the solder bonding sections vary in height. Holes are then formed at least in a solder bonding section having a maximum height out of the solder bonding sections. After that, the solder bonding sections are solidified.Type: ApplicationFiled: November 16, 2012Publication date: October 9, 2014Inventors: Daisuke Sakurai, Kazuya Usirokawa
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Publication number: 20140217595Abstract: In a provided mounting structure, an electronic component such as a semiconductor chip having a fragile film is mounted on a substrate such as a circuit board with higher connection reliability. A junction that connects an electrode terminal (4) of an electronic component (1) and an electrode terminal (5) of a substrate (2) contains an alloy (8) and a metal (9) having a lower modulus of elasticity than the alloy (8). The junction has a cross section structure in which the alloy (8) is surrounded by the metal (9) having the lower modulus of elasticity.Type: ApplicationFiled: August 8, 2012Publication date: August 7, 2014Applicant: PANASONIC CORPORATIONInventors: Daisuke Sakurai, Kazuya Usirokawa, Kiyomi Hagihara
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Publication number: 20130170165Abstract: An electronic-component mounted body of the present invention includes an electronic component mounted on a circuit board. The electronic component includes multiple component-side electrode terminals, and the circuit board includes multiple circuit-board side electrode terminals for the component-side electrode terminals. The electronic-component mounted body further includes: multiple protruded electrodes formed respectively on the component-side electrode terminals of the electronic component to electrically connect the electronic component and the circuit board; and a dummy electrode formed on the electronic component and electrically connected to the component-side electrode terminal in a predetermined position out of the component-side electrode terminals. The protruded electrode on the component-side electrode terminal in the predetermined position is higher than the protruded electrode on the component-side electrode terminal in a different position from the predetermined position.Type: ApplicationFiled: September 22, 2011Publication date: July 4, 2013Applicant: PANASONIC CORPORATIONInventors: Daisuke Sakurai, Kazuya Usirokawa
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Publication number: 20090246474Abstract: An electronic component mounted structure is constituted by connecting together via a conductive adhesive 2 the electrode terminals 1a of a first electronic component such as a semiconductor element 1 and the electrode terminals 6a (here, projecting electrodes formed thereon) of a second electronic component such as a circuit substrate 6, and filling a molding resin 4 into a gap between the semiconductor element 1 and the circuit substrate 6. The molding resin 4 is composed of a low elasticity layer 3 and a high elasticity layer having higher elasticity than the low elasticity layer, and the low elasticity layer 3 lies adjacent to the whole of the outer surface of the conductive adhesive 2.Type: ApplicationFiled: March 19, 2009Publication date: October 1, 2009Applicant: Panasonic CorporationInventors: Daisuke Sakurai, Kazuya Usirokawa, Shozo Ochi